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April 2018: Cleft Palate-craniofacial Journal
Radosław Jeleniewicz, Dorota Suszek, Maria Majdan
OBJECTIVE: Introduction: Musculoskeletal symptoms are not characteristic for granulomatosis with polyangiitis (GPA) patients. However, they could be present in two-thirds of patients at the onset of the disease and may provoke diagnostic difficulties. The aim: To assess retrospectively musculoskeletal manifestations in a group of GPA patients. PATIENTS AND METHODS: Material and methods: The analyzed group consisted of 44 patients with GPA (27M, 17F) aged 46.7 years (16-75) and treated at the Department of Rheumatology and Connective Tissue Diseases in Lublin between 2010-2016...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
Lv Jiahui, Wu Jingde, He Feng, Qu Ying, Zhang Qiuqiong, Yu Chenggong
Rheumatoid Arthritis (RA) is a chronic autoimmune disease and becomes one of the major causes of disability and work force loss. The presence of abnormal B cell and autoantibodies produced by most RA patients, primarily ACPA and RF, indicate that the function of B cell was involved in the development of RA disease. Accordingly, the drug targeting B cell has become a hot spot in the treatment of RA. Studies have shown that Bruton's tyrosine kinase (BTK) is involved in the regulation of B cell proliferation and activation process...
March 16, 2018: Current Medicinal Chemistry
A L Fedele, L Petricca, B Tolusso, S Alivernini, S Canestri, C Di Mario, S L Bosello, G Ferraccioli, E Gremese
OBJECTIVES: To define baseline clinical and immunological characteristics [anti-citrullinated peptide antibodies (ACPAs), immunoglobulin M (IgM)- and IgA-rheumatoid factor (RF), and interleukin-6 (IL-6) levels] involved in determining baseline erosiveness, outcome, and radiographic progression among seropositive and seronegative early rheumatoid arthritis (ERA) patients. METHOD: The 408 ERA patients enrolled in the study were monitored every 3 months according to the treat-to-target strategy...
March 15, 2018: Scandinavian Journal of Rheumatology
Christian Schwedler, Thomas Häupl, Ulrich Kalus, Véronique Blanchard, Gerd-Rüdiger Burmester, Denis Poddubnyy, Berthold Hoppe
BACKGROUND: Galactosylation of immunoglobulin G (IgG) is reduced in rheumatoid arthritis (RA) and assumed to correlate with inflammation and altered humoral immunity. IgG hypogalactosylation also increases with age. To investigate dependencies in more detail, we compared IgG hypogalactosylation between patients with RA, patients with axial spondyloarthritis (axSpA), and healthy control subjects (HC), and we studied it in RA on the background of HLA-DRB1 shared epitope (SE), anticitrullinated protein antibodies (ACPA), and/or rheumatoid factor (RF) status...
March 14, 2018: Arthritis Research & Therapy
Lazaros I Sakkas, Dimitrios P Bogdanos
PURPOSE OF REVIEW: This review highlights the most recent data obtained in this field and provides clues toward the better understanding of the close interplay between microbiota and host, leading to autoimmune diseases. RECENT FINDINGS: A well-described model of microbiota/host interaction of relevance to autoimmunity is that linking anti-citrullinated peptide antibody positive rheumatoid arthritis and alterations of microbiota largely concentrating on Porphyromonas gingivalis and more recently of Aggregatibacter actinomycetemcomitans and Prevotella copri...
March 13, 2018: Current Opinion in Rheumatology
Katy A Lloyd, Johanna Steen, Khaled Amara, Philip J Titcombe, Lena Israelsson, Susanna L Lundström, Diana Zhou, Roman A Zubarev, Evan Reed, Luca Piccoli, Cem Gabay, Antonio Lanzavecchia, Dominique Baeten, Karin Lundberg, Daniel L Mueller, Lars Klareskog, Vivianne Malmström, Caroline Grönwall
Autoreactive B cells have a central role in the pathogenesis of rheumatoid arthritis (RA), and recent findings have proposed that anti-citrullinated protein autoantibodies (ACPA) may be directly pathogenic. Herein, we demonstrate the frequency of variable-region glycosylation in single-cell cloned mAbs. A total of 14 ACPA mAbs were evaluated for predicted N-linked glycosylation motifs in silico, and compared to 452 highly-mutated mAbs from RA patients and controls. Variable region N-linked motifs (N-X-S/T) were strikingly prevalent within ACPA (100%) compared to somatically hypermutated (SHM) RA bone marrow plasma cells (21%), and synovial plasma cells from seropositive (39%) and seronegative RA (7%)...
March 7, 2018: European Journal of Immunology
Hadi Bazzazi, Mehrdad Aghaei, Ali Memarian, Hossein Asgarian-Omran, Nasser Behnampour, Yaghoub Yazdani
The Th17, Th1 and dual Th17/Th1 cells are important players in rheumatoid arthritis (RA) disease. To assess their roles, the frequency and impact of these cells were investigated in patients with different disease activity. In 14 new cases and 41 established RA patients in comparison with 22 healthy controls, the percentages of Th17, Th1 and dual Th17/Th1 cells were determined by flow-cytometry and their correlations were investigated with disease activity score (DAS28). Moreover, serum levels of IL-6 and IL-17 as inducer and functional cytokines for Th17 were investigated...
February 2018: Iranian Journal of Allergy, Asthma, and Immunology
Robby Engelmann, Sven Nekarda, Daniela Kuthning, Christian Kneitz, Brigitte Müller-Hilke
The treatment options for patients suffering from rheumatoid arthritis expanded over the last years. However, reliable biomarkers to guide therapy decisions are still warranted. Therefore, we here evaluated the value of antibodies against citrullinated peptide antigens (ACPA) IgG subclasses and peripheral blood antigen presenting cells as biomarkers to monitor and predict therapy response of patients with rheumatoid arthritis. Thirty-four ACPA-positive RA patients were enrolled and monitored for 3 months after therapy begin...
March 3, 2018: Clinical Rheumatology
Omnia Ahmed Mohamed Abed El-Gaphar, Amira M Abo-Youssef, Gouda Kamel Halal
Levetiracetam (LEV), a novel anti-epileptic drug that has been demonstrated with an anti-inflammatory effect, but the exact mechanisms of its action remain to be fully defined. The present study aimed to evaluate the possible effects of LEV on lipopolysaccharides (LPS)-induced Janus kinase-signal transducers and activators of transcription (JAK/STAT) as well as toll-like receptor 4 (TLR4)/ mitogen activated protein kinase (MAPK) signaling pathways activation in adjuvant induced arthritis (AIA). Rats were allocated into normal control, three arthritic control groups: Complete Freund's Adjuvant (CFA) (0...
March 1, 2018: European Journal of Pharmacology
Nicole Hartwig Trier, Bettina Eide Holm, Julie Heiden, Ole Slot, Henning Locht, Hanne Lindegaard, Anders Svendsen, Christoffer Tandrup Nielsen, Søren Jacobsen, Elke Theander, Gunnar Houen
Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease. Anti-citrullinated protein antibodies (ACPA) are crucial for the serological diagnosis of RA, where Epstein-Barr virus (EBV) has been suggested to be an environmental agent in triggering the onset of the disease. This study aimed to analyse antibody reactivity to citrullinated EBV nuclear antigen-2 (EBNA-2) peptides from three different EBV strains (B95-8, GD1 and AG876) using streptavidin capture enzyme-linked immunosorbent assay. One peptide, only found in a single strain (AG876), obtained a sensitivity and specificity of 77% and 95%, respectively and showed high sequence similarity to the filaggrin peptide originally used for ACPA detection...
February 27, 2018: Scientific Reports
Gian Luca Erre, Matteo Piga, Anna Laura Fedele, Silvia Mura, Alessandra Piras, Maria Luisa Cadoni, Ignazio Cangemi, Martina Dessi, Gabriele Di Sante, Barbara Tolusso, Elisa Gremese, Alberto Cauli, Arduino Aleksander Mangoni, Pier Sergio Saba, Ciriaco Carru, Gianfranco Ferraccioli, Alessandro Mathieu, Giuseppe Passiu
Objectives: To define the prevalence and determinants of peripheral microvascular endothelial dysfunction (ED) in a large series of rheumatoid arthritis (RA) patients free of previous cardiovascular events. Materials and Methods: Data from 874 RA patients enrolled in the EDRA study (Endothelial Dysfunction Evaluation for Coronary Heart Disease Risk Estimation in Rheumatoid NCT02341066) were analyzed. Log-transformed reactive hyperemia index (Ln-RHI) was evaluated by peripheral arterial tonometry (PAT) using the EndoPAT2000 device: values of Ln-RHI < 0...
2018: Mediators of Inflammation
Willem J J Falkenburg, Ayla C Kempers, Gillian Dekkers, Pleuni Ooijevaar-de Heer, Arthur E H Bentlage, Gestur Vidarsson, Dirkjan van Schaardenburg, René E M Toes, Hans U Scherer, Theo Rispens
No abstract text is available yet for this article.
February 21, 2018: Rheumatology
Evo Alemao, Sukhvinder Johal, Maiwenn J Al, Maureen Rutten-van Mölken
OBJECTIVES: To assess cost effectiveness of abatacept versus adalimumab, each administered with methotrexate, in treating patients with rheumatoid arthritis (RA) stratified according to baseline anticitrullinated protein antibody (ACPA) levels (marker of poor prognosis in RA). METHODS: A payer-perspective cost-effectiveness model simulated disease progression in patients with RA who had previously failed conventional disease-modifying antirheumatic drugs and were starting biologic therapy...
February 2018: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
Fabian Stemmler, David Simon, Anna-Maria Liphardt, Matthias Englbrecht, Juergen Rech, Axel J Hueber, Klaus Engelke, Georg Schett, Arnd Kleyer
OBJECTIVES: Bone loss is a well-established consequence of rheumatoid arthritis (RA). To date, bone disease in RA is exclusively characterised by bone density measurements, while the functional properties of bone in RA are undefined. This study aimed to define the impact of RA on the functional properties of bone, such as failure load and stiffness. METHODS: Micro-finite element analysis (µFEA) was carried out to measure failure load and stiffness of bone based on high-resolution peripheral quantitative CT data from the distal radius of anti-citrullinated protein antibody (ACPA)-positive RA (RA+), ACPA-negative RA (RA-) and healthy controls (HC)...
February 23, 2018: Annals of the Rheumatic Diseases
Takahisa Suzuki, Shoichi Fukui, Kunihiko Umekita, Junya Miyamoto, Masataka Umeda, Ayako Nishino, Akitomo Okada, Tomohiro Koga, Shin-Ya Kawashiri, Naoki Iwamoto, Kunihiro Ichinose, Mami Tamai, Keita Fujikawa, Toshiyuki Aramaki, Akinari Mizokami, Naoki Matsuoka, Yukitaka Ueki, Katsumi Eguchi, Shuntaro Sato, Toshihiko Hidaka, Tomoki Origuchi, Akihiko Okayama, Atsushi Kawakami, Hideki Nakamura
OBJECTIVES: We evaluated the effectiveness of tumor necrosis factor (TNF) inhibitors for the treatment of human T-lymphotropic virus type 1 (HTLV-I)-positive rheumatoid arthritis (RA) patients in an HTLV-I endemic area. METHODS: We conducted an observational study of 585 RA patients for whom TNF inhibitors were newly introduced as a first biologic disease-modifying antirheumatic drug (bDMARD) in an HTLV-I endemic area in southwestern Japan. RESULTS: Fifty patients (8...
February 22, 2018: Arthritis & Rheumatology
Akihisa Haraguchi, Hisakata Yamada, Masakazu Kondo, Ken Okazaki, Jun-Ichi Fukushi, Akiko Oyamada, Yasunobu Yoshikai, Yasuharu Nakashima
OBJECTIVES: Since the presence of IgM antibodies is a hallmark of ongoing immune response, we aimed to identify immunologically active rheumatoid arthritis (RA) patients by detecting IgM anti-citrullinated protein antibody (ACPA) levels. METHODS: IgM ACPA levels were determined in the serum of 176 RA patients by enzyme-linked immunosorbent assay, in which parameters of reactivity against citrullinated and non-citrullinated peptides were compared to ensure the specificity...
February 14, 2018: Clinical and Experimental Rheumatology
A Scharmga, P Geusens, M Peters, J P van den Bergh, D Loeffen, T Schoonbrood, B van Rietbergen, D Vosse, R Weijers, A van Tubergen
OBJECTIVES: To study the relationship between structural damage and inflammatory features on magnetic resonance imaging (MRI) or radiography and other risk factors [anti-citrullinated protein antibody (ACPA) and/or rheumatoid factor (RF) seropositivity, hand dominance, disease duration] and the presence or number of cortical interruptions in finger joints on high-resolution peripheral quantitative computed tomography (HR-pQCT). METHOD: Finger joints of 38 healthy subjects and 39 patients with rheumatoid arthritis (RA) were examined through radiographs, MRI, and HR-pQCT...
February 20, 2018: Scandinavian Journal of Rheumatology
Alessia Alunno, Onelia Bistoni, Federico Pratesi, Giuliana Maria Concetta La Paglia, Ilaria Puxeddu, Paola Migliorini, Roberto Gerli
Objectives: RA is an articular chronic inflammatory disease that in a subgroup of patients can also present with extra-articular manifestations (EAMs). Despite intense investigation on this topic, reliable biomarkers for EAMs are lacking. In recent years several ACPAs, including those targeting anti-citrullinated alpha enolase peptide-1 (anti-CEP-1), have been identified in patients with RA. Data about the ability of anti-CEP-1 to predict the development of erosive disease are confliciting and no evidence concerning their possible association with EAMs in RA is currently available...
February 14, 2018: Rheumatology
Willem J J Falkenburg, Helen J von Richthofen, Jana Koers, Cas Weykamp, Marco W J Schreurs, Liesbeth E Bakker-Jonges, Inez-Anne Haagen, Willem F Lems, Dörte Hamann, Dirkjan van Schaardenburg, Theo Rispens
BACKGROUND: Accurate measurements of rheumatoid factors (RFs), autoantibodies binding IgG, are important for diagnosing rheumatoid arthritis (RA) and for predicting disease course. Worldwide, various RF assays are being used that differ in technique and target antigens. We studied whether assay choice leads to clinically important discrepancies in RF status and level. METHODS: RF measurements using four commercial RF assays were compared in 32 RF+ samples. Using enzyme-linked immunosorbent assays (ELISAs), the influence of the target antigen source - human IgG (hIgG) versus rabbit IgG (rIgG) - on measured RF levels was investigated in arthralgia patients and RA patients...
February 10, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
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